Tunnels were Kinmen's lifeline during the military period. Little Kinmen's Jiugong Tunnel is one of the largest—no need to fear claustrophobia here! It's a 5-min walk from the ferry terminal.The tunnel was built in 1965 so that food and military supplies could be safely transported to Little Kinmen. It stretches a long distance, connecting the coastline and a harbor through a mountain. Comprising 5 different tunnel networks, the spacious and meticulously designed facility could accommodate 52 large boats.Walking through Jiugong Tunnel is impressive. So are the exhibits!